We got a Lab 9 months ago and were really struggling with a lot of dog hair. It's amazing what our Romba picks up, as we can tell by the contents of the debris bag. I've found the app extremely helpful and the explanations for how to clean and trouble-shoot have been clear and easy to follow. My only challenge is getting it to create one map for all of the rooms on my first floor, so I can direct it to individual rooms when needed. Still, I'm really glad we bought it.